A specific angiographic sign was found in 20 patients with putaminal hemorrhage among 154 cases of hypertensive intracerebral hemorrhage, The lateral branch of the lateral lenticulostriate arteries in these patients was deviated medially on the angiogram, but the distal portion was directed lateral to the superior sagittal sinus. Patients with this sign have had a good prognosis. This sign is useful to assess hemiplegia in hypertensive intracerebral hemorrhage.